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Finding the Fourth Proportional to 172,128.66, 237,532.82 and 95,645.78

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Solution

The fourth proportional to 172,128.66, 237,532.82 and 95,645.78 is: 131,988.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,128.66 : 237,532.82 = 95,645.78 : x
  2. Step 2: Convert to fraction form
    172,128.66/237,532.82 = 95,645.78/x
  3. Step 3: Cross multiply
    172,128.66x = 237,532.82 × 95,645.78
  4. Step 4: Simplify right side
    172,128.66x = 22,719,011,366.27
  5. Step 5: Solve for x
    x = 22,719,011,366.27/172,128.66
  6. Step 6: Final answer
    x = 131,988.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.